return {
    x4 = 12,
    x1 = true,
    x2 = 4,
    x3 = 128,
    x5 = 112233445566,
    x6 = 1.3,
    x7 = 1112232.43123,
    x8_0 = 123,
    x8 = 112233,
    x9 = 112334,
    x10 = "yf",
    x12 = {
        x1 = 1,
    },
    x13 = 'C',
    x14 = {
        _type_ = 'DemoD2',
        x1 = 1,
        x2 = 2,
    },
    s1 = {key='xml_key2',text="xml text222"},
    v2 = {x=1,y=2},
    v3 = {x=1.2,y=2.3,z=3.4},
    v4 = {x=1.2,y=2.2,z=3.2,w=4.3},
    t1 = 1970-1-1 00:00:00,
    k1 = {
        1,
        2,
    },
    k2 = {
        1,
        2,
    },
    k5 = {
        1,
        2,
    },
    k8 = {
        [2] = 10,
        [3] = 30,
    }
,
    k9 = {
        {
            y1 = 1,
            y2 = true,
        },
        {
            y1 = 2,
            y2 = false,
        },
    },
    k15 = {
        {
            _type_ = 'DemoD2',
            x1 = 1,
            x2 = 2,
        },
    },
}